Promax GV-198, Руководство пользователя

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TV generator GV-198
Page 2 01/2004
No. of lines / field 625 525
Frame frequency 50 Hz. 60 Hz.
Line frequency 15625 Hz. 15734 Hz.
Horizontal synchronism
Line period (1/f
H
) 64
µ
s
±
100 ns 63.56
µ
s
±
100 ns
Previous pedestal 1.6
µ
s
±
100 ns 1.59
µ
s
±
100 ns
Synchronism 4.8
µ
s
±
100 ns 4.77
µ
s
±
100 ns
Blanking 12
µ
s
±
100 ns 11.12
µ
s
±
100 ns
Vertical synchronism
Frame period 20 ms
±
100 ns 16.68 ms
±
100 ns
(H=64
µ
s) (H=63.56
µ
s)
Blanking 25 H + 12
µ
s 21 H + 11.12
µ
s
Pulse time of:
Pre-equalizing 2.5 H 3 H
Equalizing 2.5 H 3 H
Post-equalizing
2.5 H 3 H
PAL colour subcarrier
Frequency (B, G, H, D, K, I) 4.43361875 MHz <
±
30 ppm (10
°
C to 40
°
C)
Frequency (N) 3.58205625 MHz <
±
30 ppm (10
°
C to 40
°
C)
Frequency (M) 3.5756118 MHz <
±
30 ppm (10
°
C to 40
°
C)
Burst duration 2.4
µ
s (10
±
1 Fsc period)
Burst position 5.6
µ
s + 100 ns from the line previous
synchronism flank.
Phase 135
°
as referred to U axis
Amplitude Error
±
5%
Burst
ON / OFF, selectable
Chrominance ON / OFF, selectable
NTSC colour subcarrier (M)
Frequency (M) 3.579545 MHz <
±
30 ppm (10
°
C to 40
°
C)
Burst duration 2.38
µ
s (10
±
1 Fsc period)
Burst position 5.56
µ
s + 100 ns from the line previous
synchronism flank.
Phase -180
°
as referred to U axis
Amplitude Error
±
5%
Burst ON / OFF, selectable
Chrominance ON / OFF, selectable
SECAM colour subcarrier (B, G, H, D, K, L)
Subcarrier frequency Fdr = 4.406250 MHz
±
2 kHz
Fdb = 4.250000 MHz
±
2 kHz
Line identification points Selectable ON / OFF using burst key